Kolinger, who was born in Germany but has been capped once by Croatia, is said to fancy a move to England this summer.
And it is claimed he could be available for a 'cut price' £1 million to rumoured suitors Brighton, Middlesbrough and Reading - despite having two years left on his contract.
6ft 5ins Kolinger could fill the void created by Uwe Hunemeier's departure from Brighton, whose Premier League status may give them the upper hand.
However, with Brighton's Lewis Dunk and Shane Duffy having forged an impressive partnership over the past two seasons, his best chance of first team football could come in the Championship with either Middlesbrough or Reading.
Middlesbrough were eliminated from the play-offs by Aston Villa on Wednesday, consigning them to another season in the second tier, where Reading will remain after their last-day survival.
Should Brighton / Boro / Reading move for Kolinger this summer?